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imx:mx6slevk add board level support for usb

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Add pinmux settings, implement board_ehci_hcd_init, board_usb_phy_mode

There are two usb port on mx6slevk board:
1. otg port
2. host port
The following are the connection between usb controller and board usb
interface, host port has not ID pin set:
otg1 core <---> board otg port
otg2 core <---> board host port
In order to make host port work, board_usb_phy_mode return USB_INIT_HOST
to let host port work in host mode.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Ye Li <B37916@freescale.com>
This commit is contained in:
Peng Fan 2014-11-10 08:50:41 +08:00 committed by Marek Vasut
parent 229dbba9b1
commit 3b9c1a5dc0
3 changed files with 68 additions and 0 deletions
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5
arch/arm/include/asm/arch-mx6/mx6sl_pins.h
View File

@ -53,5 +53,10 @@ enum {
MX6_PAD_FEC_REF_CLK__FEC_REF_OUT = IOMUX_PAD(0x424, 0x134, 0x10, 0x000, 0, 0),
MX6_PAD_FEC_RX_ER__GPIO_4_19 = IOMUX_PAD(0x0428, 0x0138, 5, 0x0000, 0, 0),
MX6_PAD_FEC_TX_CLK__GPIO_4_21 = IOMUX_PAD(0x0434, 0x0144, 5, 0x0000, 0, 0),
MX6_PAD_EPDC_PWRCOM__ANATOP_USBOTG1_ID = IOMUX_PAD(0x03D0, 0x00E0, 4, 0x05DC, 0, 0),
MX6_PAD_KEY_COL4__USB_USBOTG1_PWR = IOMUX_PAD(0x0484, 0x017C, 6, 0x0000, 0, 0),
MX6_PAD_KEY_COL5__USB_USBOTG2_PWR = IOMUX_PAD(0x0488, 0x0180, 6, 0x0000, 0, 0),
};
#endif /* __ASM_ARCH_MX6_MX6SL_PINS_H__ */

49
board/freescale/mx6slevk/mx6slevk.c
View File

@ -20,6 +20,8 @@
#include <fsl_esdhc.h>
#include <mmc.h>
#include <netdev.h>
#include <usb.h>
#include <usb/ehci-fsl.h>
DECLARE_GLOBAL_DATA_PTR;
@ -243,6 +245,48 @@ static int setup_fec(void)
}
#endif
#ifdef CONFIG_USB_EHCI_MX6
#define USB_OTHERREGS_OFFSET 0x800
#define UCTRL_PWR_POL (1 << 9)
static iomux_v3_cfg_t const usb_otg_pads[] = {
/* OTG1 */
MX6_PAD_KEY_COL4__USB_USBOTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
MX6_PAD_EPDC_PWRCOM__ANATOP_USBOTG1_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
/* OTG2 */
MX6_PAD_KEY_COL5__USB_USBOTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL)
};
static void setup_usb(void)
{
imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
ARRAY_SIZE(usb_otg_pads));
}
int board_usb_phy_mode(int port)
{
if (port == 1)
return USB_INIT_HOST;
else
return usb_phy_mode(port);
}
int board_ehci_hcd_init(int port)
{
u32 *usbnc_usb_ctrl;
if (port > 1)
return -EINVAL;
usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
port * 4);
/* Set Power polarity */
setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
return 0;
}
#endif
int board_early_init_f(void)
{
@ -261,6 +305,11 @@ int board_init(void)
#ifdef CONFIG_FEC_MXC
setup_fec();
#endif
#ifdef CONFIG_USB_EHCI_MX6
setup_usb();
#endif
return 0;
}

14
include/configs/mx6slevk.h
View File

@ -209,6 +209,20 @@
#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
#endif
/* USB Configs */
#define CONFIG_CMD_USB
#ifdef CONFIG_CMD_USB
#define CONFIG_USB_EHCI
#define CONFIG_USB_EHCI_MX6
#define CONFIG_USB_STORAGE
#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
#define CONFIG_USB_HOST_ETHER
#define CONFIG_USB_ETHER_ASIX
#define CONFIG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW)
#define CONFIG_MXC_USB_FLAGS 0
#define CONFIG_USB_MAX_CONTROLLER_COUNT 2
#endif
#define CONFIG_SYS_FSL_USDHC_NUM 3
#if defined(CONFIG_ENV_IS_IN_MMC)
#define CONFIG_SYS_MMC_ENV_DEV 1 /* SDHC2*/